Shuttle-driving mechanism for looms.



Patented Aug. 2|, |900. E. sun-:3.

SHUTTLE DRIVING MECHANISM FDR LOOMS.

(Application filed Apr. 16, 1900.)

(Np Modal.)

WITNESSES:

I ITED STATES PATENT FFIC'.

" l' `ERNST STER, OF PATERSON, NEW JERSEY.

`SHuTTLE-DRlvlNeinsel-Annett Fon' Looms.

SPECIFICATION forming part of Letters Patent No. 656,432, dated August 21, 19O.

' Application nea April 16, 1900.

To all whom it may oon/cern:

Beit known that I, ERNST SUTER, a citizen of the Republic of Switzerland, residing at No. l5 Lee Place, in the city of Paterson, county of Passaic, and State` of New Jersey, have invented certainnew and usefulIinprovements in ShuttleDriving and Operating Mechanism for Looms; and I do hereby declare the following `tobe a full, clear, and exact description of the` invention, such as will enable others skilled in the art to which it appertains to make and use the same,l reference being had to the accompanying drawings, and to letters of reference marked thereon, which form la part of this specification.

This invention relates to improvements in looms,` and especially ribbon or narrow-ware looms, and has` particular reference to that part of the loom which is termed the shuttle driving or operatingmechanism.

The object of the invention is to provide a loom ofthe above character with simple and eifective means for operating or throwing the shuttles, reliable in operation and rendering the loom more durable and capable of being operated ata very high speed.` l

The invention consists in the improved loom, its shuttle driving and operating mechanism, and-in thecombination and arrangement of the various parts thereof, substantially as wi-ll be hereinafter more fully described and finally embodied in the clauses of the claim. y t

Referring to the accompanying drawings, in which like letters of reference indicate corresponding parts in each of the several views, Figure l is a side elevation of a portion of a loom provided with my improvements, only those partsbeing shown which are necessary to fully illustratevthe nature of my invention. Fig. 2 is an enlarged front elevationof a portion of the batten and its adjacent parts and more clearly showing one of the shuttles and its operating means; Fig. 3, a cross-sectional view of Fig. 2, the shuttle being shown in full; Fig. 4, an enlarged detail rear elevation of a portion of the shuttle, and Fig. 5 a sectional view on the line a: m of Fig. 4t.

In said drawings, ot represents the frame, and b the main driving-shaft, transmitting motion to the fulcrumed lay-swords cV in the sean No. 12,983. et: moar-.1.)

usual and wellknown mannerA On the batten d are mounted suitable shuttle-blocks e, forming the shuttle-race for the shuttle j', which latter is provided at its rear portion and at or near each end with a rearwardlyprojecting pin g, adapted to be engaged by a worm or endless screw 71 which latter is securely mounted on a shaft having suitable bearings in brackets m, projecting from and 6o secured to the batten d. It must be remarked that said endless screw or worm 7?', isarranged considerably lower than the shuttle f, so that its supporting-shaft t' clears the shed formed by the warp-threads inthe space between the ,adjoining shuttle-blo'cks.-` For this purpose in most cases it will be necessaryqto. provide in the upperrear portion of the batten and also in the lower portion ofthe shuttle-block a recess n, as shown in Fig. 3, and to place 7o the worm or endless screw 71. in such a position that the projecting pin g of the shuttle f engages at or near the upper portion of tsaid endless screw or worm.

On the shaft t' is securely mounted a pin- 75 ionv o, in mesh with a gear-wheel p, revolubly mounted on the stub-shaftq and receiving its motion'from a sprocket-wheel r', which latter `is also revolubly mounted on the stub-shaft q', but is firmly secured to the gear-wheel p. 8o The sprocket-wheel r is` operated or, better, oscillated by a sprocket-chain s, the free ends of which are connected" to the free ends of treadle-levers t t, pivotally secured or fulcrnmed on the frame a, as at a', and carry- 85 ing about midway antifriction-rollersu and u', The latter are adapted to be engaged alternately by the respective cams lv and o', se-

cured to and projecting from a shaft w, havingits bearings in the frame a and carrying 9o a gear-wheel the latter in mesh with the gear-wheel y on the main driving-shaft b, all

as clearly shown in Fig. l of the drawings.

For the purpose of changing the throw or length of travel of theshuttle the pins g are made adjustable-that is to say, said pins are secured to and project from a plate g', suitably guided in a longitudinal recess g2 in the back of the shuttle, (and for said purpose the recess g2 with the plate g are eled,) and is provided with an elongated slot g3, penetrated by a screw g, by means of suitably bevroo which latter said plate is adjustably secured.

Within the longitudinal lrecess g2, as will be manifest. If alarger adjustment is required, an additional internally-screw-threaded hole g5 may be provided in the back of the shuttle for the reception of the adjusting-screw g4. It must be remarked that the pitch of the coperating endless screws or Worms must be the same, and said worms must be so ar- Af ranged that the pins g freely engage and disengage said worms while the latter are being rotated or oscillated for the purpose of throwing the shuttle from one shuttle-block into the other, or vice versa.

In operation, as heretofore stated, the treadle-levers t and t are operated alternately, and the cams are so constructed and arranged that when one of the treadle-levers has been lowered it will remain in that position for a specified time (the rest position of the shuttle) Vwhich must be suiiicient to allow Vthe chan ging yof thefshed orsheds, as 'will be mfanifest.

I do not intend to limit myself to the precise y(construction shown and described, as Various alterations can be made without cha'ngy ing lthe scope of my invention; but

What I claim as new, :and desire to secure by Letters Patent, is-

1. In a loo-m, the combination, wi'thia frame l andthe main driving-shaft and hatten, of a shuttle carried by :said batte'n, a screw o r Worm revolubly mounted lon said hatten Vand adapted to operatively engage said shuttle to drive the same, va sprocket journaled in said batten and voperatively Yconnected to 'said` screw or worm, treadle-levers fulcr'umed in v said frame, a sprocket-chain lengaging vsai-d sprocketand having its ends respectively Vconv means, lopera-ted n-ect-'ed :to said levers, and

from the main driving-shaft, for operating said treadle-leVer-s, substantiall y as described.

2. In a loom, the combination, withaframe and the main driving-shaft and hatten, of a shuttle or shuttles carried by said batten, a shaft journaled on said hatten, screws or Worms mounted on said last-named shaft and adaptedr to drive said shuttle or shuttles, a sprocket ljournaled in said batteri, gearing connecting said sprocket and 4said last-named shaft, treadle-levers fulcrurnedin said frame, ra sprocket-chain engaging said sprocket and having its ends respectively connected to said levers, and means, operated from the main driving-shaft, for operating said treadle-levers, substantially as described.

3. In alooln, thecornbination with the frame and the main driving-shaft and with the batl` ten operated therefrom, of a shuttle carried by said batten and provide-d at or near each end with a rearward ly-proj-ecting p'in, ya sha-ft revolubly mounted on lthe lloa-tten and parallel with the same, an endless Vscrew or worm secured on said shaft and adapted to engage the projecting pins o-f theslruttle, treadle-'levers fulcrumed in theloom-fra'me, asprocket jo'urnale'd in said batten, gearing connecting said sprocket vand the worm-carrying shaft, a sprocket-chain engaging said sprocket 'and having-its endsfrespectively con-nectedtosaid levers, -a'nd means operated from the main driving-shaft for ope-rating said tread/ledevers, substantially as described.

' In `testimony that I lclaim the 'foregoing I have hereunto ser my hand this 7th `day of April, 1900,. y Y v Y ERNST SUTER. VV'itnesse's':

ALFRED GARTNR, MARGARET BRITTON. 

